US1672048A - Mold-making machine - Google Patents

Description

fine 5, 1928. I

1,672,048 J. R. WOOD' MOLD MAKING MACHINE Filed May 29. 1925' 5 Sheets-S heet 1 INVENTOR ATTORNEYS June 5, 1928. 1,672,048

J. R. WOOD MOLD MAKING MACHI NE Filed May 29, 1925 5 Sheets-Sheet 2 refwilb ATTORNEYS June 5, 1928. 1,672,048

J. R. WOOD MOLD MAKING MACHINE Fil ed May 29 1925 5 Sheets-Sheet 5 ATTORNEYS June 5, 1928. 1,672,048

J. R. WOOD MOLD MAKING MACHINE Filed May 29. 1925 '5 Sheets-Sheet 4 INVENTOR ATTORNEYS June,.5, 1928. I 1,672,048 J; w oon MOLD MAKINGMACHINE Filed May 29, 1 925 5 Sheets-Sheet 5 wewroz ATTORNEYS Patented June 5, 1928.

UNITED V w 1,672,048 PA ,sN oFFic-E.

JOHN R. woonyor murnono; mimmvnnmgnssmuon ro- NEW rxoonssi MULTI- CASTINGSLCOMP'ANIYOF Nnwmmgnnw UERBEIgAQCOEPORATION on NEW JERSEY.

moLnm-axmoimaonmn ApplieationqfiledMay 29, 1925., Serial n. 33,604.

.My presentrinvention relates to a machine for the making of icastingim'o'lds. Itmore particularly relates .toisuch a maehmewhieh is adapted to squeeze and olt;the mold 1n 5 the forming thereof and in, which the mold is formed with the cope rand-drgagimounted" one on .each side of .a pattern plate which is stripped from the mold after first one part of the moldJis formed andrthen the other,.the

flask being rolled over between the-formation of the two parts of the mold-therein.

' Inthe machine of :my invention the cope is preferably fixed to the machine. and

mounted over a squeezing rand jolting table;

Means are provided for swinging a. pattern plate-into and out of position overithe Cope and for positioning adrag on the pattern plate. A member :for opposi-ngthe' table during the mold squeezing is mounted for 20 swinging into and out of the squeezing position. In this machine the squeezmgtor 101ting table is used for mov ngthe drag and mold during the assembly of the mold, thestripping of'the patterm and thestrlppingis of the flask. A special valve is provided for admitting airpressure automatically tothe table actuating means in'such 'amanner'that the mold/is first squeezed and 'thenfjolted' when such action is desired5'this valve being :to described fully in my eo'pendi-ng application Serial No. 85,869, filed February 4, 1926,.to which reference is,hereby made. "Whendesired the table byproper operation 'ofthe valve may-be given the squeezing of lifting movement alone. v i I In the drawings forming part of this application:

Fig. 1 is a vertical elevation of a machineembodying my inventionshowing a .j'olting and squeezing piston and cylindrya valve for controlling the movement of the piston; a table on the upper end of the piston; a cope permanently mounted to the machine andresting' on the table connection between-the squeezing, and pattern and mold stripping movement of the latter; a pattern plate mounted to the cope support of the machine and movable into and out of the position on the cope; means for position ng a drag .on

the pattern plate and cope; meansior rotating or rolling. over. the cope orflask ;.and

a squeezing head movable into and-ioutof op erable relation with theflask and squeezing 55 table,

.machine and cope permitting of. joking,-

g."6 is aihorizontal section view takenalong'theline' 66 of Fig. 5.

In the drawings the (base 10 supports the columns "11, 12, 13,. and 14 and columns 11 and 12 support the yoke and columns 13 and 14 support yoke l6which yokes are held on their respective columns by the nuts 17 17. Said columns 11 and 12 also support and serve as slideways for the vertically. movable supporting yoke 18, and the col umns 13 and 14 in like manner support and serve. as slideways for the. vertically movable yoke 19. The hooks-20 and 21 hinged to y'okes 15 and 16 respectively are removably engage'a'ble with the notches 22 and 23 onthe' yokes 18 and 19- tor supporting said latter yokes when desired or fo'r'liniit- .ingthe downward movement thereo'tat ce'r:v tain times; The cams 24 *and 25 through their, handles 26 and 27' serve' to move said hooks.20 and 21out of engagement with 1 notches 22 and 23. i The springs 28, 28 between the yokes T18 and 19 and the nuts '17,

17 serve to limit the upward movement of the yokes 18 and .19- during squeezin and jolting. and for imparting a quick ownwardjmovement during jolting of molds in flasks supported by yokes 18 and 19 as herein'atter fully described.

(In said yokes '18 and'19 and between their respective supporting columns are provided the roller bearings 30 and 31 respectively.

' In bearing '30. is mounted'the journal shaft 32 formedion the end .of'the supporting member 34 which extends inwardly toward the center of the machine. A ball thrust bearing '36 mounted between yoke 18 and a shoulder on member 34 serves. to take. any endthrust expected thereon. In bearing 31 is mounted-the journal shaft 37 formed on the supporting member :39.

Said support members 34 and 39 serveito carryrthereope-40 which is: secured thereto by the. bolts .41,- 411 and theLflanges 42 and 43 formed son said cope. On .member. 1 .34 I :is

, mountedthe pin44 which extends. upwardly therefrom when the cope is in the inverted position. On said pin is journaled an arm 46 which supports the pattern plate 47. Said arm 46 is movable rotatably and horizontally on said pin 44 on which the head 48 serves to limit the longitudinal movement. Through the flange 42 and support arm 34 and through flange 43 and arm 39 are provided the holes 50 and 51 through which extend the pins 52 and 53 which are fixed to the drag 54 and serve to position it on the pattern plate and cope. The latch 56 serves to hold the cope 40 and drag 54 together when desired.

From the above description it can be seen "that the flask and pattern plate are rotatable on a horizontal axis on said bearings 30 and 31. Means for locking the flask in either the normal or the inverted position is provided in the form of a bolt which extends through the hole 57 in yoke 19 and is engageable with hole 59 or 60 in flange 61 on member 39 for holding the flask either in the inverted or the normal position respectively. The handle 62 pivoted at one end to the yoke 19 and having a loose pivot connection with pin 55 serves to move the lat ter into and out of engagement with said holes 59 and 60.

Directly below the cope 40 and carried by said base 10 is the vertical cylinder 65 in which is movable the piston 66 which carries the molding table 67. Compressed air is supplied to the cylinder 65 through the pipe 69 b way of the valve mechanism 71 which can e regulated to cause the piston to move upwardly for squeezing the mold or for other purposes, or to cause the piston to move upwardly a given distance and then jolt for a given number of jolts as fully described in my copending application Serial No. 66,473, filed November 3, 1925, to which reference is hereby made.

Above the cope or flask is mounted the squeezing head 72 which by means of handle 73 swings rotatably into and out of operable relation with the flask on its journal bearings 74 and 75 which move inthe bearings 76 and 77 formed in the standards 78 and 79 formed in said yokes 16 and 15 respectively. On said journals 74 and 75 are mounted the counterweights 80 and 81 dia- "metrically opposite to said head 72.

Mounted to the cope 40 are the clamps 84 which serve to hold the cope, drag, and a bottom board together when the flask is rolled over. For holding the cope mold and cope in an upright position are provided the disengageable holding members 86, 86 oper able through the shafts 87, 87 in accordance with my invention disclosed in my copending application Serial No. 33,605, filed May 29, 1925, to which reference is hereby made.

Pivoted to the yoke 18 and movable onto and from the drag is the filling box 88, a

similar filling box 89 for the cope being pivoted to yoke 19.

In the use and operation of the above described mold making machine embodying my invention for'the forming of a two part means of valve mechanism 71' and as de-.

scribed in said copending application Serial No. 66,473 air is admitted to cylinder 65 to cause cylinder 66 automatically first to raise the table 67 to move the flask upwardly to cause the sand to be squeezed byzsaid head 72 and then to jolt it. The table is then lowered, head 72 is swung out of the way, and the drag mold is struck off by movingthe filling box 88 from over the flask. A bot tom board ,(not shown) is placed over the drag mold and clamped thereon by means of clamps 84, 84 mounted to cope 40. Bolt 55 is then disengaged from hole 59, by means of handle 62 and the flask is rolled over into the upright position in which it is secured byengaging pin 55 in hole 60. Filling box 89 is then swung into position over cope 40 and sand admitted thereto. After the head 72 is swung into the squeezing position, the table 67 through piston 66 is actuated as before described to squeeze and jolt the cope mold. The clamps 84, 84 are then disengaged and the table lowered leaving the bottom board, drag 54, and the drag mold thereon, leaving the cope suspended and the cope mold held therein by means of the members 86, 86; and leaving the pattern plate 47 suspended between'but separated from both the cope mold and the drag mold, the pattern plate having slid on its bearing 46 and pin 44 downwardly after the drag and table but having been prevented from moving as far as they by the pin head 48, the hooks 20, 21 serving of course to hold the cope suspended.

The filling box 89 and pattern plate 47' are then swung out of the way and the table I raised tobring the cope and drag together.

The cope mold is then released from the together by a mold shell clamped to the bot,

tom board, sucha shell being described in my copending application Serial No. 33,606,

filed May 29, 1925.

It is to be understood that when the drag mold is formed it is jolted more than is the memo rs isreleased from the cope, the table lowered to separate the copeand drag, the pattern plate' sw'ung between t-hem; and the cope,- pattern plate,- and dragrea'ssembled and the process "continued mas above described.

' I-claim:

-1. In a'molding machine, 'i'ncombination,

a cope, a support for said cope with connec-' tlon therebetween' permitting the rolling over of said cope, means OHSBLldSHPPOItfOI locking said cope inadesired position,

standards for said-support permitting the rais ng and lower ng of the supportj thereon, means for locking'said support on said standards against downward movement and allowing upward movement from a given oint resilient means for limitin said u 7 C Ward movement, a' squeezing head above'sa-id cope movable into and out of operable relation with said cope, a'lifting and jolting table under said cope, 'andjmeans under' said table for raising'and jolting said table and cope.

2. In a mold making maehine,-in=combi-' nation, a set of standardsg support members on said standards and "movable upwardly and downwardly thereon, a cope removably fi-Xed to and held by'said supports, resilient means for limiting the upward movement of said supports on said standards, 'disengageable means for positively limitmg' the downward movement of said supports :on said standards, connection between saidiicope andsa'id supportspermitting the rollin over of said cope, means for locking said cope at desired positions on said supports, and means for jolting said cope against the tension of said resilient means.

3. In a mold making machine, in combination, a set of standards, support members on said standards and vertically movable thereon, resilient means for limiting the upward movement of said supports on said standards, disengageable means for positively limiting the downward movement of said supports beyond a given point, a cope mounted on said supports, a pattern plate mounted on said supports movable vertically and horizontally into and out of operable position on said cope, a drag, means for locking said cope, pattern plate, and drag in predetermined relation, and means for permitting the rolling over of the cope and drag on said supports.

4. In a mold making machine, in combia s'e't or standards, support members vertically movable on said sta'ndards,"resilient #means for "limiting the movementin an upwardly direction, disengagea'blemmeans for positively limiting the movement downwardly beyond a given point, a cope mounted tor-rotational movement on a horizontal ed -on sa id-wsuppo'rts "rotatable with "said cope'but movable vertically and horizontally into and out of operable relation "therewith,

i aerison'saidsu pportya pattern'plate mounta drag, means :for' re'leasably engaging said I cope; drag, and pattern plate at apredetermined arelatiomand means for j oltimg said J cope,=drag, and pattern plate.

1 5. Ina mold-"making machineein com'bination, a=set of standardsysupport members vertically movable on said standards, resilient means-tor limiting the movement-in an upwardly direction, disengageable means-tor positively limiting the movement dow-nwardly beyond a given point, ai cope mounted for rotational movement on-a-horizontal axis on said support, a pattern plate mounted on said supports rotatable with said cope but movable vertically and horizontally into and out of o rable relationtherewith,v a drag, meansor :releasably engaging said cope, drag, and patternipla'te at a predetermined relation, and meansiorjolting said cope, drag, and pattern plate against said resilient means. V

6. In armold making maohine,'in combination,='a set of standardm' support members vertically "movableon said standards, resilient means fonlimiting-the movement in :an

upwardly direction, disengageable means for positively limiting the. movement downwardly beyond a :given point, a cope mounted :fior rotational movement on a horizontal axis on said support, a pattern plate mounted onasaid supports rotatable with said cope and i V out. i of operable relation therewith, .a

drag, means for releasably engaging said cope, drag, and pattern plate at a predetermined relation, a squeezing head movable into and out of operable relationabove said cope and drag, and means for jolting said cope, drag, and pattern plate against said resillent means, and for raising the flask against said squeezing head.

7. In a mold making machine, in combination, a support, a flask section mounted to the support for rotation about a horizontal axis and for movement vertically, and a match plate carried by said support movable with said flask section and adapted further to be moved from against the bottom of the cope and to be moved from against the said bottom with a movement normal to the bottom and then to be moved from registry over said bottom and releasable means on said flask section for holding a mold section therein, a, platform below said flask section,

and means for raising and lowering it, and a squeeze head mounted for movement into and out of operable relation above said,

carrying member.

8. In a mold making machine, in combination, a support, a flask section mounted to the support for rotation about a horizontal axis and for movement vertically, and a match plate carried by said support movable With said flask sectionand adapted further to be moved again-st the bottom of the cope and to be moved from against the said bottom with a movement normal to the bottom and then to be moved from registry over said bottom, another flask section, a bottom board, and detachable means for securing together said flask sections, pattern board,

and bottom board, a platform below said flask section, and means for raising and lowering it and a squeeze head mounted for movement into and out of operable relation above said carrying member. v

9. In a mold making machine, in combination, a support, a flask section mounted to the support for rotation about a horizontal axis and for movement vertically, and a match plate carried by said support movable With said flask section and adapted further to be moved from registry over said bottom and releasable means on said flask section for holding a mold section therein, another flask section, a bottom board, and detachable means for securing together said flask sections, pattern board, and bottom board, a releasable latch for holding said flask section at a predeterminedheight on said support member, a platform below said flask section, and means for raising and lowering it, and a squeeze head mounted for movement into and out of operable relation above said carrying member.

10. In a mold making machine, in combination, a support, a flask section mounted to the support for rotation about a horizontal and to be moved from against the said bot.

tom with a movement normal to the bottom and then to be moved from registr over said bottom, another flask section, a bottom board, and detachable means for securing together said flask sections, pattern board, and bottom board, av releasable latch for holding said flask section at a predetermined height on said support member and a releasable latch having means for holding said flask section in an upright position and in an inverted position, a. platform below said flask section, and means for raising and lowering it. v v

11. In a mold making machine, in combination, a support, a flask section mounted to the support for rotation about a h0rizontal axis and for movement vertically, and a match plate carried by said support movable with said flask section and adapted further to be moved against the bottom of the cope and to be moved from against the said bot tom With a movement normal to the bottom and then to be moved from registry over said bottom, another flask section, a bottom board, and detachable means for securing together said flask sections, pattern board,

and bottom board, a releasable latch for signature.

' JOHN R. WOOD.

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